pyrosulphuric acid
Disulphuric Di`sul*phu"ric, a. [Pref. di- + sulphuric.] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [1913 Webster]

{Disulphuric acid}, a thick oily liquid, {H2S2O7}, called also {Nordhausen acid} (from Nordhausen in the Harts, where it was originally manufactured), {fuming sulphuric acid}, and especially {pyrosulphuric acid}. See under {Pyrosulphuric}. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • pyrosulphuric acid — /ˌpaɪroʊsʌlfjurɪk ˈæsəd/ (say .puyrohsulfyoohrik asuhd) noun → fuming sulphuric acid. Also, pyrosulfuric acid …   Australian English dictionary

  • Pyrosulphuric — Pyr o*sul*phu ric, a. [Pyro + sulphuric.] (Chem.) Pertaining to, or designating, an acid called also {disulphuric} acid) obtained by distillation of certain sulphates, as a colorless, thick, oily liquid, {H2S2O7} resembling sulphuric acid. It is… …   The Collaborative International Dictionary of English

  • Disulphuric acid — Disulphuric Di sul*phu ric, a. [Pref. di + sulphuric.] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [1913 Webster] {Disulphuric acid}, a thick oily liquid, {H2S2O7}, called also… …   The Collaborative International Dictionary of English

  • fuming sulphuric acid — Disulphuric Di sul*phu ric, a. [Pref. di + sulphuric.] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [1913 Webster] {Disulphuric acid}, a thick oily liquid, {H2S2O7}, called also… …   The Collaborative International Dictionary of English

  • Nordhausen acid — Disulphuric Di sul*phu ric, a. [Pref. di + sulphuric.] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [1913 Webster] {Disulphuric acid}, a thick oily liquid, {H2S2O7}, called also… …   The Collaborative International Dictionary of English

  • fuming sulphuric acid — noun a solution of sulphur trioxide in sulphuric acid, H2S2O7, forming crystals below 35°C; oleum; pyrosulphuric acid; disulphuric acid …   Australian English dictionary

  • Disulphuric — Di sul*phu ric, a. [Pref. di + sulphuric.] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [1913 Webster] {Disulphuric acid}, a thick oily liquid, {H2S2O7}, called also {Nordhausen acid}… …   The Collaborative International Dictionary of English

  • H2S2O7 — Disulphuric Di sul*phu ric, a. [Pref. di + sulphuric.] (Chem.) Applied to an acid having in each molecule two atoms of sulphur in the higher state of oxidation. [1913 Webster] {Disulphuric acid}, a thick oily liquid, {H2S2O7}, called also… …   The Collaborative International Dictionary of English

  • pyro- — a word element used: 1. Chemistry a. before the name of an inorganic acid, indicating that its water content is intermediate between that of the corresponding ortho (more water) and meta (least water) acids, as in pyroantimonic acid, H4Sb2O7,… …   Australian English dictionary

  • Disulphate — Di*sul phate, n. [Pref. di + sulphate.] (Chem.) (a) A salt of disulphuric or pyrosulphuric acid; a pyrosulphate. (b) An acid salt of sulphuric acid, having only one equivalent of base to two of the acid. [1913 Webster] …   The Collaborative International Dictionary of English

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